Help Identify Carved Walnut? Trunk

There is something inside but I don't have a key! Trying to identify this trunk and the lock. I have more pics if needed. The dimensions are: top 47" X 18 1/2"; trunk 45 1/2"; from the bottom to the to 19"; from the floor to the top 21 1/2". I am told this is walnut. Thanks in advance!

I bought a suitcase that was locked, no key, for 25 cents. I have a key collection, tried many of them. Few days later I found my old locking keyboard key and tried it, and voila, it opened! Old newspaper from 1945 was the noise maker. Sold the suitcase for $35.